Sync ECG Examples dataset from main repo

README.md

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+---
+license: mit
+language: []
+pretty_name: ECG Heartbeat Examples
+task_categories: [time-series-classification]
+tags: [ecg, heartbeat, medical-data, hadt]
+size_categories: 1K<n<10K
+---
+
+# ECG Heartbeat Examples
+
+This dataset contains example ECG heartbeats and short ecgs taken with apple smartwatches. Sources:
+- Single heartbeats were taken from [MIT-BIH dataset preprocess into heartbeat Python](https://www.kaggle.com/datasets/talal92/mit-bih-dataset-preprocess-into-heartbeat-python)
+  - The dataset above was derived from the [Original MIT-BIH Arrhythmia Dataset on PhysioNet](https://www.physionet.org/content/mitdb/1.0.0/). That dataset contains half-hour annotated ECGs from 48 patients.
+- Short 30-second ECGs taken with apple watches.
+
+These examples are part of the **Heart Arrhythmia Detection Tools (hadt) Project** ([hadt GitHub Repository](https://github.com/fabriciojm/hadt)) and are intended for educational and research purposes.
+A demo where the dataset is used can be found in the [hadt demo](https://fabriciojm-hadt-app.hf.space/).